National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

46°F

8°C

Humidity 53%
Wind Speed SW 3 mph
Barometer 30.07 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 1 Nov 2:15 pm CDT
Extended Forecast for

Chillicothe IL

  • This Afternoon

    This Afternoon: Isolated showers. Cloudy, with a high near 50. West northwest wind around 6 mph. Chance of precipitation is 20%.

    High: 50 °F

    Isolated
    Showers

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 31. Calm wind.

    Low: 31 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, sunny, with a high near 56. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Southwest wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. Southwest wind 7 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 16 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Light south southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 18 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers. Cloudy, with a high near 50. West northwest wind around 6 mph. Chance of precipitation is 20%.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 31. Calm wind.
Sunday
Patchy fog before 10am. Otherwise, sunny, with a high near 56. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 38. Southwest wind 6 to 8 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 62. Southwest wind 7 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 16 mph.
Monday Night
Partly cloudy, with a low around 37. Calm wind.
Tuesday
Mostly sunny, with a high near 66. Light south southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.92°N 89.52°W (Elev. 522 ft)
Last Update:
2:01 pm CDT Nov 1, 2025
Forecast Valid:
2pm CDT Nov 1, 2025-6pm CST Nov 7, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation